The graph shows the population of alligators and mosquitoes in a pond ecosystem where cricket frogs live. a graph with the title species population is shown. the y axis title is population and next to it is an arrow pointing upwards. the x axis title is year and the values 1, 2, 3 4. 5 are marked on the x axis. a solid slanting graph line is shown sloping gently downwards. a straight broken graph line is shown. a key is shown at the bottom right of the graph. next to the straight line is written mosquitoes and next to the broken line is written alligators. how will this impact the population of cricket frogs over time? decreases because the number of predators increases increases because the number of predators increases decreases because the number of prey decreases increases because the number of prey decreases

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation